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Note 2 - Significant Accounting Policies (Details Textual) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($)
Number of Operating Segments	2
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ 26,390	$ 56,734	$ 37,179	$ 69,949
Retained Earnings (Accumulated Deficit)	(79,108)		(74,895)
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 12,000		$ 10,200
Percent of Distributed Dividends Equal to Taxable REIT Income	90.00%
Income Tax Expense (Benefit), Total	$ 0
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total (in shares) | shares	0	0
Class B LLC Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares			26,317
LTIP Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	3,382,465		2,949,823
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares	$ 8.80		$ 9.26
LTIP Units [Member] | Employees [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	274,911
LTIP Units [Member] | Employees [Member] | Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	1 year
LTIP Units [Member] | Employees [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	2 years 6 months
LTIP Units [Member] | Non-employee Director [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	157,731
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 5.62
Collectability of Lease Receivables [Member]
Loss Contingency, Loss in Period	$ 1,900	$ 1,400
Revenues	$ 1,100	700
Collectability of Lease Receivables [Member] | One Customer at Tribeca House [Member]
Revenues		$ 1,100
Cumulative Effect, Period of Adoption, Adjustment [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance				(6,046)
Retained Earnings (Accumulated Deficit)				$ 6,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-02 [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance			$ (6,000)

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